Roof to pole...
Having the dish pole-mounted does help with keeping it free of snow and slush, but it may not change reception necessarily.
I have my DirecTV roof mounted and my HN dish pole mounted. Reception varies for both in bad weather, and can't be predicted. I've had excellent reception during snow days, and bad reception during rainy days, and vice versa. In my case, ice on the HN dish is what makes reception so poor, and removing that can be tricky, because you might accidentally misalign the dish.
Edit: also, the installers usually put the dish where it can get the best line to the satellite, so maybe yours is on the roof because that's the best location (there are installers who post on this site, and I hope one of them will correct me if I'm wrong). Additionally, you will likely have to foot the bill for the job.
soulbarn wrote:
Right now, my dish is on the roof. We’re just into our second snowstorm of the year, and once again, it seems that slush and snow have interrupted of our services. I’m thinking of relocating the dish to a pole mount for easier snow removal. Our DIRECTV dish is pole mounted in our yard and reception is fine, so does that mean I can assume that will have similarly good reception if I pole mount the HughesNet dish?